The club claim the comments were on an unofficial fans' Facebook page following Norwich's 1-0 win at Stoke on Sunday.

In a statement, the club said: "Following last weekend's victory for the Canaries away to Stoke, unacceptable terminology was used on the Facebook page "**OFFICIAL**!!! Ipswich - Norwich fans banter/insult/joke page. It should be stressed the site is in no way officially affiliated to either club."

"Kick It Out, football's equality and inclusion campaign, have reported the comments made as a hate crime to the Police and Norwich City totally supports this stance. We are in dialogue with Kick It Out and Ipswich Town and will co-operate fully with the Police investigation into the incident.

"We have a zero tolerance policy on racism and all other forms of discrimination and any supporter found guilty of racist abuse faces a lifetime ban from Carrow Road in addition to any punishment handed out by the courts."